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APPENDIX D
IECEx APPROVAL DESCRIPTION
The following items, functions, and options describe the IECEx approval.
APPROVAL
Line-of-Sight Infrared Hydrocarbon Gas Detector, Model LS2000.
Receiver Transmitter
IECEx UL 15.0037X
IECEx UL 15.0037X
Ex db eb IIC T4 IEC 60079-29-4 IP66/67
Ex db eb IIC T4 IEC 60079-29-4 IP66/67
T4 (Tamb –50°C to +75°C)
T4 (Tamb –50°C to +75°C)
(Receiver without relays)
--OR--
--OR--
Ex db IIC T4 IEC 60079-29-4 IP66/67
Ex db IIC T4 IEC 60079-29-4 IP66/67
T4 (Tamb –55°C to +75°C)
T4 (Tamb –55°C to +75°C)
(Receiver with or without relays)
Performance verified with Methane, Butane, and Propane in accordance with IEC 60079-29-4.
IEC Standards:
IEC 60079-0: 2011
IEC 60079-1: 2014
IEC 60079-7: 2015
IEC 60079-28:2006
IEC 60529, 2.1 ed.+Corr.1:2003+2:2007
IEC 61000-4-1:2006
IEC 61000-4-3:2010
IEC 61000-4-4:2012
IEC 60079-29-4:2010
Performance Approved for Methane, Butane, and Propane
IEC Conditions of Certification (general):
• Only suitable certified Ex d or Ex e (as applicable) cable entries, adapters, and blanking elements
are to be used, including 1/2 inch NPT, 3/4 inch NPT, M20 and M25 sizes, with IP66/67 rating.
• The Model LS2000 assemblies are to be installed in places where there is a low risk of mechanical
damage.
• The field wiring terminal connections are certified for a single wire in size from 0.2 to 2.5 mm2, (or
two conductors with same cross section 0.2 to 0.75 mm2). The screws must be tightened down
with a torque 0.4 to 0.5 Nm.
• The metal housings of the Model LS2000 Gas Detector must be electrically connected to earth
ground.
• Flameproof joints are not user serviceable; contact Det-Tronics Service.
• Seven special fasteners are provided for the Transmitter electronics module, M8 bolts per ISO 965
with M6 head, SST with a yield strength of 483 N/mm2 (70,000 PSI). The tightening torque in an
opposing order is 19 Nm (169 inch-pounds) per flange bolt.
• The following additional previous editions of Standards noted under the “Standards” section of
the Certificate where applied to integral Components as itemized below. There are no significant
safety related changes between these previous editions and the editions noted under the
“Standards” section.
Phoenix Contact Terminal Block Model Front 2.5
IEC 60079-7:2001, IEC 60079-0:2004